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CATEGORY LISTINGS > CATERPILLAR > Cat 3116 wont start without starting fluid [ REFRESH ]
Thread Title:

Cat 3116 wont start without starting fluid


Created On Monday February 29, 2016 15:20 Diesel Talk
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jarek11
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Joined: Feb 2016

Note Monday February 29, 2016 15:20 View thread in raw text format
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Hello

Ive got a terex pegson jaw crusher with cat 3116 engine, the problem is that it wont start without starting fluid (at all). Also im not sure if the fuel pressure is correct: about 1,4 bar at work and 0,25 bar when its not running (pressure created by using a hand pump). im adding a plate picture from engine . Plate I will be grateful for any suggestions
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TDcrash63
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Joined: Sep 2007

Note Tuesday March 01, 2016 18:35 View thread in raw text format
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29 psi at full load is spec I believe it will start with almost no fuel pressure as long s there is no air in the fuel. These engines were bad for the injector coppers allowing combustion past the bottom seating area where the injector seats in the copper. That being said. If the engine otherwise runs fine once started. No misfire, good power no unusual smoke or noise and no air in the fuel going in to the cylinder head or no air coming out. I would suspect the governor, Crank engine. If engine will not start remove valve cover. Rotate fuel rack in the fuel on position and crank again. IF it starts right up and runs smoothly governor is not giving engine enough fuel at start up. You will see this condition once in a while. Though not real common. The most common problem is air in the fuel.
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JoeZ
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Note Friday March 11, 2016 04:42 View thread in raw text format
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3116 notorious for check valve problems. There are at least two and maybe 3 check valves.

-------------------------
 One of the last 2 Stroke mechanics left.
44 years in the business and worked on everything from 53 series to 149 series. Winding it down now...time to move on.
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jarek11
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Note Sunday March 27, 2016 06:00 View thread in raw text format
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Thank you for your help. The information i have got from you was really useful. Engine started to blow smoke throught breather hose so ive got to replace a couple fo things. How can i repay you?
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